Method and apparatus for link monitoring in a wireless communication system

Abstract

A method and apparatus for link monitoring in a wireless communication system. A wireless device receive a link monitoring configuration for measurements of a cell group, wherein the link monitoring configuration includes (i) a first index of a first radio resource among a periodic radio resource set, and (ii) information on a first pattern for a deactivated state. A wireless device performs link monitoring for the first radio resource with the first pattern based on the state of the cell group being the deactivated state.

1 . A method performed by a wireless device in a wireless communication system, the method comprising:
 receiving a link monitoring configuration for measurements of a cell group,   wherein the link monitoring configuration includes (i) a first index of a first radio resource among a periodic radio resource set, and (ii) information on a first pattern for a deactivated state;   determining a state of the cell group among the activated state and the deactivated state; and   performing link monitoring for the first radio resource with the first pattern based on the state of the cell group being the deactivated state.   
     
     
         2 . The method of  claim 1 ,
 wherein the link monitoring configuration includes (i) a second index of a second radio resource among a periodic radio resource set, and (ii) information on a second pattern for a deactivated state.   
     
     
         3 . The method of  claim 2 ,
 wherein the second pattern is different from the first pattern.   
     
     
         4 . The method of  claim 1 ,
 wherein the first pattern includes a time pattern.   
     
     
         5 . The method of  claim 1 ,
 wherein the first pattern includes a frequency pattern.   
     
     
         6 . The method of  claim 1 ,
 wherein the first pattern includes both a time pattern and a frequency pattern.   
     
     
         7 . The method of  claim 1 ,
 wherein the first pattern is applicable for the periodic radio resource set.   
     
     
         8 . The method of  claim 1 ,
 wherein the link monitoring configuration includes information on multiple radio resources.   
     
     
         9 . The method of  claim 1 ,
 wherein the link monitoring configuration further includes a purpose related to a first radio resource.   
     
     
         10 . The method of  claim 9 ,
 wherein the purpose includes at least one of (i) RLF detection, (ii) BF detection, and (iii) both the RLF detection and the BF detection.   
     
     
         11 . The method of  claim 1 ,
 wherein the first radio resource includes a reference signal or a synchronization signal block (SSB).   
     
     
         12 . The method of  claim 1 ,
 wherein the cell group is a secondary cell group (SCG) or a master cell group (MCG).   
     
     
         13 . The method of  claim 1 , wherein the method further comprises,
 receiving a radio resource control (RRC) reconfiguration including a deactivation command for the cell group.   
     
     
         14 . The method of  claim 1 , wherein the wireless device is in communication with at least one of a user equipment, a network, or an autonomous vehicle other than the wireless device. 
     
     
         15 . A wireless device in a wireless communication system comprising:
 a transceiver;   a memory; and   at least one processor operatively coupled to the transceiver and the memory, and configured to:   control the transceiver to receive a link monitoring configuration for measurements of a cell group,   wherein the link monitoring configuration includes (i) a first index of a first radio resource among a periodic radio resource set, and (ii) information on a first pattern for a deactivated state;   determine a state of the cell group among the activated state and the deactivated state; and   perform link monitoring for the first radio resource with the first pattern based on the state of the cell group being the deactivated state.   
     
     
         16 . The wireless device of  claim 15 ,
 wherein the link monitoring configuration includes (i) a second index of a second radio resource among a periodic radio resource set, and (ii) information on a second pattern for a deactivated state.   
     
     
         17 . The wireless device of  claim 16 ,
 wherein the second pattern is different from the first pattern.   
     
     
         18 . The wireless device of  claim 15 ,
 wherein the first pattern includes a time pattern.   
     
     
         19 . The wireless device of  claim 15 ,
 wherein the first pattern includes a frequency pattern.   
     
     
         20 - 31 . (canceled) 
     
     
         32 . A base station in a wireless communication system comprising:
 a transceiver;   a memory; and   a processor operatively coupled to the transceiver and the memory, and configured to:   control the transceiver to transmit, to a wireless device, a link monitoring configuration for measurements of a cell group,   wherein the link monitoring configuration includes (i) a first index of a first radio resource among a periodic radio resource set, and (ii) information on a first pattern for a deactivated state.